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nguyenquocvietcqt
2 năm trước
bài 5. một lớp học có 44 học sinh. Số học sinh trung bình chiếm $\frac{1}{11}$ số học sinh cả lớp. số học sinh khá $\frac{1}{5}$ số học sinh còn lại. a) tính số học sinh giỏi b) tính tỉ số hs giỏi và hs trung bình c) tính tỉ số phần trăm giữa hs giỏi và khá
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